Perpetual calendar



AuggS; 1930. M. F. RosE PERPETUAL CALENDAR Filed Nov. 14; 1928 Patented Aug. 5, 1930 MANUEL F; Rosa, or ALAMEDA, CALIFORNIA PERPETUAL CALENDAR Appucaminrned November 14, 192s; serial No. 319,229.

The invention relates to a`dev'ice` providing a calendar of the perpetual type.

An object of the invention is to provide af perpetual calendar in which thev displayedv data for a particular month'is usable in itsA entirety and without any element of uncertainty. v

Another objecty ofthe invention -is'to provide in afcalendar ofthe class described a particularly'effective means for displaying' a table of the days of a week in their proper relation for a particular month. Y

A lfurther object .of the'invention is tov provide the aforesaid calendar with means positively indicating the number of days in a particular month independently of said table therefor.

Yet yanother objectof the -inventionfisto'l y vprovide a device of the character described having a particularly simple structure vfor accomplishing the purposes thereof.

The invention possesses other objectsv and features of advantage', some of which', with;

the foregoing, will be set forth vin the follow;V "ing description of a preferredform of the invention which is illustrated in the accom-g.

panying drawings, in which: H l Y Figure 1 1s a facevlew of a calendar em.-

bodying the invention.` 301 progressively .broken away.

Figure 3 is an enlarged sectional? vievvf 3 5 Ataken on the line 3-3 in Figure 1... l

Figure 4l is a minified face View .of

vice. Y l Figure 5 is a face view of an indicator disc A ,mermber of the structure.

ange portion 7 defining a reduced sight opening for the frame.

open-ingl with its edges against the inner'side of the frame flange, said pane' being preferably, though not necessarily, of glass. Mounted behind the pane 8 is a mat member Figure 2 is a baclrview of the calendari, portions of different ymembers thereof being;l l y of the'scroll, the plate 13 i'snot'ched' from its a? scrll and rollers therefor forming part of the' dei' A transparent and im perforate pane 8 is disposed the frame 9 providinggenerally centrally therein',airV opening 11.y A plate 13 is disposedV behind the mat member 9,7said plate being imperi ,Y

foratebehind the mat opening ai'idvlittingl: the frame opening whereby its definite" pos'i'' tioning within the frame is assured.V f'

Mounted on the back ofl thefrafmel indi adjacent opposite ends. thereof are rollers" 4f and 15, said rollers being Aparallelly related and being journalle'd in bearing members-16 mounted on the framev adjacent lopposite edges thereof. The 'rollers are preferably cylindrical and of constant:sectionwtliere# along except at the bearings r`where*they*aref reduced slightly for engagementinthe bearV` ing bores of complementary'size andfso'are arranged to be held against accidental-axial displacement from theirmounting" in' said l bearings jin a particularlyr simple"manner:` A scroll 17, bearing indicia' to be hereinafter more specificallyV described, is mountedon .Y

the rollers with the extremities tl'igereofse!k cured to the' different rollers' inl a suitable mannerl The scroll portion which liesjbe tween the rollersis disposed between 9 andthe plate 18 Vwhereby a predetermined."

length thereof is arranged forfdis'play in the mat opening'r 1.1, the4 scroll being rolledffro'rn' fone roller to; theother to display' predeter mined porti'ons'thereof as required.

Fori permitting the aforesaiddisposition o' opposite ends inI the manner sliow'ir at' 1'8 inr` Figure 2,: whereby the" remainin'g'end'por Y,

tions 21 ofsaidl plate lyingg'enerally fop!y posite sides ofthe scroll rolls'remain 'for engagingthe frame to fix theL plate'tlierein' c against lateral displacement.' Freferably,

f and as'p'a'rticularly disclosed in' Fig'ur'the Vmembersv inv front ',of4 it in' the frame may l be `,secured 1n their proper relativepositlons, andk may be lfreely removed by and uponfarel moval of one or both. of the rollers.v As' shown, a paper backing; member isv dis;

plate 18, and beneath the rollers, saidA meinber 23 being, of course, suitably"'perforated `posed on the back faces of the frameand "wirL y position adjacent the mat opening,

indicating the days of the Week. As particuopposite the plate notches l8'and serving to seal the assembled device toa maximum degree. Knobs 24 are provided on the rollers for turning the same, it being noted that a slight frictional engagement of the rollers with the member 23 is preferably provided for preventinga turning of a roller except When the scroll is deliberately drawn from one roller to another for effecting a change of the displayed scroll portion.

Means are provided for displayingin fixed indicia larly disclosed, the appropriate symbols 26 are printed on the mat 9 laterally ofthe exposed scroll'portion, the scroll edges thus being arranged for concealment and retention beneath the mat at all times. HThe various symbols 26 are arranged in a line extending alongv and just above the upper edge of the mat opening 11 and are equally' spaced: in Vtheir line, the seven days of the Week lbeing indicated by yappropriate abbreviations therefor. A y f.

AReferring now to the scroll 17 ,it is seen byreference to Figure 4 that said scroll has Vprovided therealong four distinct setsor i. y l y y n the manner herembeforeindicated, the spaces tablesof numbers separated by spaces 27, said tables being indicated in order by the numerals 29, l28, Y30 and 31. VEach of said tables; y I

the tables 29 and 28 being preferably providprovid-es thirteen lcolumnsof figures spaced longitudinallyy of the scroll with the same spacing vas that of the symbols ofthe indicia 26 on the mat l1. The numbers of each table. gare also arranged in rovvs directed longitudr nally of the scroll.v Considering generally the aforesaid number tables, itis seen that the numbers thereof begin With one, that the numeral one is in the top row, that the succes.-l

sive numbers in the rovvs are progressively larger by one 1n order toward the right-hand V sides of the tables, and that the numbers in each column are vprogressively seven units larger when consideredA in a downward direction in the column. By this arrangement it isseen thatif any group of seven columns be considered by itself, asuccession of numbers is displayed Without duplication and in,

arrangement of calendar the usual order or numbers.

- Referring specifically `to thetable 31, itis seen that the largest number displayed is thirty-one and that such numberv Will'bedisplayed no matter'vvhere the group of columns is'chosen. Assuming this table disposed be-v hind the mat 9, if the first day of a month should occur on a Sunday, the column headed by the numeral one Would be disposed under the symbol Sun on the mat and the remaining day numbers for the month would occur under the appropriate day symbols. In this manner, the table may be disposed to display a proper arrangement of day numbers in con- Y the lines of symbols 38 and 39 are provided lon formity With the day of the :Week on Which But some months have but thirty days,

While February has twenty-eight or twentynine. Since the table 3l presents numbers for athirty-one day month, uncertainty as to which dayis .the last day of the month would frequently arise if this table Were to be used for alltheV months and the accuracy of the use of the tablewould beseriously interferred with; Accordingly, andas shown, the table 28 is specifically numbered asfor a tvventyeight day month, the table 29 fora tWentynine day month, andthetable 30 for a thirty day month, and the appropriate exact table is thus provided for use during any particular month. Obviously, the various tables differ only in thehighest number displayed' and are otherwise alike. In this -manner,a perpetual Acalendar is provided which, vWhen set for a particular month, may thereafter be vused i Without any element of perplexity.

For facilitating a setting ofthefscroll in,

27 are providedy With suitable indicia 32 dif recting an operator toward the desired table,

ed at one end of the scroll inthe ordershovvn,

since they areused so much less frequently.

than are the tables v3() and 3l.

I Means are also preferably provided in theft .device for `designating the month .and ythe number of days therein, and as yshown, such means comprises a displaceable member 33 disposed forwardly of the plate member 13A `and behind the displayedl scroll portionl whereby itis generally concealed'behind' the i mat 9 and said scroll portion. Openings'34 Aand 35 are provided in the mat laterallyrlofV said scroll portion for viewing limited portionsof the member 33, vvhich portions are provided with suitable indicia.l As particu-` mat above the line of day symbols 26, and the opening 35 is provided in the matfat the opposite side of said scroll portion. In the present embodiment, the member 33 comprises a disc pivotally fixed to thel member of the disc is nearer the opening 34 and the; Adisc is arranged to protrude slightly from the upper frame edge whereby it may be manually turned, the frame being appropriatelyslotted as at 36 and 37 to permit the use of a protrusion thereof.

Referring to Figure 5, it Willbe seen that the outer face of the disc 33 Vsaid lines being larly shown, the opening 34 is provided in the lll disc of sufficient diameter to provide for said l circular and concentric, with their common center of curvature at the disc center. The symbols 38 of the inner line are those of the twelve months of the year and are arranged to be displayed in the opening 34. The symbols 39 are members which disclose the number of days in the month the symbolr 38 of which occurs diametrically opposite a given symbol 39. Since in leap-year, the month of February has twenty-nine days rather than twenty-eight as in other years, the symbol for February is provided twice in the line of month symbols, and the numbers twentyeight and twenty-nine are provided opposite said symbols and in the number line. Pref* erably, though not necessarily, the symbols 38 and 39 are arranged as shown wherein, with the exception of one of the symbols for February and its corresponding number, twomonth symbols 38 and two-number symbols 39 occur in the same diametral line. rIhis arrangement permits the provision of larger symbols on the disc, and so is generally de'- sirable for at least the smaller sizes of they device. It will now be clear that the use of the disc 33 in connection with the display of the appropriate table of the scroll, is arranged to disclose the exact calendar data needed for a particular month without any element of uncertainty, thereby accomplishing a major object of the present invention.- And, furthermore, the structure described is a particularly simple one for providing for a performance of the desired functions thereof.

From the foregoing description taken in connection with the accompanying drawings, the advantages of the construction and meth- 0d of operation will be readily understood by those skilled in the art to which the invention appertains, and while I have described the principle of operation, together with the device which I now consider to be the best embodiment there-of, I desire to have it understood that the device shown is merely illustrative, and that such changes may be made, when desired, as fall within the scope of the appended claims.

Having thus described my invention, I

claim as new and desire to secure by Letters Patent of the United States the following:

l. In a device of the class described, a frame, a mat member providing a sight opening, rollers mounted in said frame at opposite sides of said opening, a scroll cooperatively carried by and between said rollers and arranged to have different portions thereof dis-v played in said opening, said scroll carrying tables of calendar dates on the viewable face there-of and having the symbols thereof arranged in columns for selective display at said opening, said mat member having indicated thereon the days of the week for simultaneous registration with the displayed columns of a table and being provided with rected flange defining a reduced front sight opening for the frame, a transparent pane fittedly engaged in the frame and behind said flange, a mat engaged behind said pane and having a central sight opening, a back plate engaged in the frame behind said mat and arranged for the disposal of a scroll portion betweenthe rollers between itself and said mat, and means for journalling said rollers on said fra-me and with said portion thereof between the said plate andA mat whereby said rollers engage the said plate for securing the pane and mat and plate in the frame.

3. In a device of the class described, a scroll having provided on a face thereof a table of calender dates having the date numbers so arranged that any group of seven adjacent columns of a table will provide in regular order numbers corresponding to all the days of a month, rollers carrying said scroll on and between them, a frame having a forward and inwardly directed flange therearound defining a reduced front sight opening for the frame, a mat engaged behind said flange and having a central sight opening f-or the display therein of a said group of seven columns of said numbers, a back plate engaged in the frame behind said mat and having the scroll portion between the rollers engaged between itself and the mat to display a selected said group of numbers in the said sightopening of the mat, and means journallingy said rollers on and to said frame whereby said rollers engage said plate for securing. the mat and plate in the frame and said rollers are frictionally and displaceably held against rotation.

In testimony whereof I afHX my signature.

MANUEL F. ROSE. 

